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A moving and hopeful novel about a grieving widower who discovers that second chances can grow among tomato plants, good tilled earth, and people who refuse to let him face life—and weeds—alone.
After thirty-one years of marriage, Bill “Scotty” Scotsford knew exactly what his life was supposed to look like. The death of his wife threw it all on the compost heap.
Taking a plot at the community garden across the street from his new condo seemed like a good way to feel normal again—and perhaps hold on to a little of the life he’d lost. What Scotty didn’t expect was everything that came with the garden: unsolicited advice, questionable gardening techniques, ridiculous quantities of zucchini, shared coffee, unexpected friendships, and a group of people who somehow began to notice whether he showed up.
Through heat waves, broken hoses, stubborn tomatoes, unexpected illness, first frost, and countless cups of coffee, Scotty slowly discovers that grief does not have to disappear before life can begin growing again.
The Summer Garden is a warm, funny, deeply human novel about grief, friendship, belonging, and the small, ordinary moments that quietly become a life.
Pre-order now. Available December 3, 2026
Other Books by Mark Posey
Time Travel Rule #1: Don’t interact with anyone for any reason.
Yeah, right.
CIA field agent Ryan Cochrane thought testing an experimental time machine would be just another assignment. Then a police dog damaged the activation switch on his arm and stranded him twenty years in the past.
Getting home should be simple: find the theoretical physicist who helped make time travel possible and get him to repair the switch.
There’s just one problem.
That physicist is Ryan’s father.
In Ryan’s time, both his parents have been dead since he was thirteen. Twenty years in the past, they’re alive again, his younger self is just down the road, and every conversation risks changing the future. Ryan knows the rules. Don’t interfere. Don’t reveal who he is. And above all, don’t change anything.
Then the timeline begins changing anyway.
Each attempt to put history back where it belongs creates new consequences, new dangers—and new reasons for Ryan to question whether restoring the past is really the same thing as making things right.
Because when you’ve been given an impossible second chance with the people you lost, saving the future may mean losing them all over again.
Assassinating Yesterday is the first book in the Project Gateway series, a fast-moving time-travel thriller combining action, government intrigue, altered timelines, dark humor, and deeply personal family stakes.
One family’s life is changed beyond anything they could ever imagine.
A major foreign power has been funneling key intelligence personnel into the United States for nearly a year, hiding them as embassy and consulate staffers, students, and plain immigrants. In response, the FBI activates its Domestic Sleeper program.
Scattered across the country as architects, cab drivers, and other innocuous roles, failsafe agents in the Domestic Sleeper program are unaware of their status as dormant FBI agents until they’re triggered by a post-hypnotic codeword. Their programming drives them to a pre-arranged checkpoint to receive the instructions necessary to combat a Credible Threat.
All thirteen episodes of the first season of Credible Threat, including the explosive double length finale.
This Omnibus Edition collects the six Nun With A Gun stories into a single volume, The Book of Jacobine.
The Pope calls Alice Fisher—Sister Jacobine—his giusta mano destra or “righteous right hand.” At his behest, she deals with those who step outside of the Church’s doctrines and, through their actions, dishonor His Holiness. Alice’s unique skillset and God-given gifts make her particularly well-suited as the Pope’s enforcer.
Powerful forces inside the Church target Sister Jacobine, to weaken His Holiness’ preeminence and further their own dark agenda. Alice must use her considerable skills and resources to safeguard those closest to her, including His Holiness himself.
When a Vatican hit squad targets her, Alice turns to the only person she can count on for help—the Philadelphia Police Detective who arrested her for murder.
Feet of Clay, the first Sister Jacobine story, was released as a standalone short on September 1, 2020. Due to reader demand, the rest of the stories were released over the next six weeks.
The Establishment: the wealthy, elite power mongers who run the country from the shadows, with eyes and ears everywhere. They are spoken of only in whispers.
When the President-elect and the Vice-President-elect arrive in Rome to visit the Pope, CIA Station Chief Thomas Billings knows it’s not the only reason they’re in town. In the Presidential Suite of the swankiest hotel in Rome, Billings is confronted by Establishment heavyweight Marjorie McBain, who wants him dead.
As the President-elect refuses to bow to the demands of the Establishment, Billings fights being dragged into the power battle. Then the Establishment tries to kidnap the First Daughter…
A specialist in parkour and an expert marksman, Billings needs all his skills to keep the First Daughter out of the grasp of the Establishment as they flee across Italy. With the Establishment closing in, Billings must decipher which of the myriad connections to his past will be his Saving Grace.
Michael O’Halloran Shorts
One split-second decision can change the rest of your life. Sometimes it takes decades to find out how.
Detective Sergeant Michael O’Halloran has spent twenty-seven years with the Baltimore Police Department without ever firing his weapon in the line of duty.
Then he walks into a bank robbery.
His response is fast, instinctive—and deadly. While the department investigates the shooting, Michael is left at a desk with far too much time to think about the choices that brought him there.
His memories carry him back to Spring Break 1979, when he, Jimmy Marshall and Paul Cunningham were three ordinary junior-high boys testing how much they could get away with. Smoking behind the community hall. Stealing booze for a camping trip. Shoplifting from old man Sanks’ tiny country store.
Michael’s contribution to their criminal careers?
A pack of Gummibears he didn’t even like.
What seemed like a ridiculous teenage mistake becomes part of a much larger question: how much of a life can turn on one impulsive choice—and how different might everything have been if someone had made another one?
Crime and Gummibears is a compact, character-driven suspense story about friendship, memory, guilt, growing up and the small decisions that echo across a lifetime, told with Mark Posey’s dry humor and deeply human focus on choices and consequences.
Some games are a matter of life and death.
Detective Sergeant Michael O’Halloran only stopped at the convenience store to buy a pack of Gummibears. Instead, he finds himself facing a desperate young robber with a gun pressed against an elderly woman’s head.
When the robber takes the woman hostage and flees, Michael gives chase, determined to bring her home alive. But the pursuit leads him into a deserted housing development, where every shadow could conceal a killer and one wrong move could cost someone their life.
As the confrontation unfolds, Michael recalls a very different game from his college days, one that taught him a lesson about trust, strategy, and the unexpected consequences of the choices we make.
Because in real life, there are no second chances when the shooting starts.
The Games We Play is the second Michael O’Halloran suspense short story from Mark Posey, combining gripping police action with a deeply human look at the choices that shape our lives.